Can some one help me with Dilation rule plz

B. (x, y)  -->  (7/2x, 7/2y)

Step-by-step explanation:

I can't tell for sure, so I am assuming the large circle is the image, Circle C', and the small circle is the original circle C.

The radius of circle C is 2 units.

The radius of circle C' is 7 units.

To find the scale of the dilation divide the new size by the old size.

New size: 7 units

Old size: 2 units

scale: 7/2

The scale of the dilation is 7/2.

B. (x, y)  -->  (7/2x, 7/2y)

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2